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Analysis
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max time kernel
149s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
09/03/2024, 15:28
Static task
static1
Behavioral task
behavioral1
Sample
2024-03-09_193f03541192106359a9d3f1a1e6f958_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-09_193f03541192106359a9d3f1a1e6f958_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-03-09_193f03541192106359a9d3f1a1e6f958_cryptolocker.exe
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Size
102KB
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MD5
193f03541192106359a9d3f1a1e6f958
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SHA1
b8bc5726415ea6705f98d82f401d3d12ffd2389a
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SHA256
4730065f80b9540c05d2b1837d912303c8d8d9695da7454f570574bb5f34309d
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SHA512
a99f6bc2975d8871c50e79dec7b2bb3aab6a6dbc5df890f4355c853db41bc6526887a20a8ee0295d84a6eb0496de7e4224b72e121b477043c9c1a3f5c8b6d210
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SSDEEP
768:XS5nQJ24LR1bytOOtEvwDpjNbZ7uyA36S7MpxRiWjzUNojlEy8fZQdCD:i5nkFGMOtEvwDpjNbwQEIikgNyEH
Malware Config
Signatures
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Detection of CryptoLocker Variants 6 IoCs
resource yara_rule behavioral1/memory/2344-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000b0000000122b8-11.dat CryptoLocker_rule2 behavioral1/memory/2344-12-0x0000000002060000-0x000000000206F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2344-16-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2092-18-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2092-27-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 3 IoCs
resource yara_rule behavioral1/memory/2344-16-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2092-18-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2092-27-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 6 IoCs
resource yara_rule behavioral1/memory/2344-0-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000b0000000122b8-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2344-12-0x0000000002060000-0x000000000206F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2344-16-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2092-18-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2092-27-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2092 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2344 2024-03-09_193f03541192106359a9d3f1a1e6f958_cryptolocker.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2344 wrote to memory of 2092 2344 2024-03-09_193f03541192106359a9d3f1a1e6f958_cryptolocker.exe 28 PID 2344 wrote to memory of 2092 2344 2024-03-09_193f03541192106359a9d3f1a1e6f958_cryptolocker.exe 28 PID 2344 wrote to memory of 2092 2344 2024-03-09_193f03541192106359a9d3f1a1e6f958_cryptolocker.exe 28 PID 2344 wrote to memory of 2092 2344 2024-03-09_193f03541192106359a9d3f1a1e6f958_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-03-09_193f03541192106359a9d3f1a1e6f958_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-09_193f03541192106359a9d3f1a1e6f958_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2344 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2092
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
103KB
MD5c03138b92b4975037408cfbbcac62bce
SHA12a505be61192d3b5f11c5f0acb9f0ab8b2fe59b6
SHA256c246f328bcf06551d59a611214a8af7101bb15d8554d29dd69d6d3caf862a44c
SHA5127088095e34515c9f412be9607994cf74ccb854155a9d0e3c33caa583854be2812e9348825878954745c0f576886063f8e82d4ee741084778097d16906067d487